Answer / prajapati piyush p.

long hollow material with capacity to bent at any point is called tube.while pipe has no capacity to bend we have to use elbow to bend it.

Answer / krishna

A pipe is a vessel - a tube is structural.
A pipe is measured ID - a tube is measured OD.
tube will have a consistent OD and it's ID will change.
Engineers see tubes and pipes with different eyes.
A tube is structural.
By having a consistent OD they can vary wall
thickness, changing the ID, to increase strength. Because
they are consistent OD, they have predictable
characteristics.

Answer / shah rakesh g.

Tube is defined by its OD and Pipe is defined by NB(Nominal
bore)and thickness as schedule.

Tube OD is calculated in MM as (OD in inch * 25.4)but for
pipe upto 14" will not be calculated as (pipe NB * 25.4)
because upto 14" NB pipe the pipe OD will be higher than
calculated as (pipe NB * 25.4).Above 14" the pipe OD will
be calculated as (PIpe NB * 25.4)

Answer / palash

when d/t<10 it is called as tube.

tube for d/t>10

Answer / dipak bhaumik

Pipe - measurement of pipe inside
Tube - measurement of pipe out side

Answer / emerie

Pipe is unlike a tube, which the ID and OD measurement can change in volume when a bigger pipe is injected in it

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